Oil-burner attachment for stoves.



G. W. DALL.

OIL BURNER ATTACHMENT FOR STOVES.

APPLICATION FILED NOV. 9, 1912.

Patented Aug. 19, 1913.

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W a M O. W. DALL.

OIL BURNER ATTACHMENT FOR STOVES.

APPLICATION FILED NOV. 9, 1912.

Patented Aug". 19, 1913.

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COLUMBIA PLANOGRAPH co., WASHINGTON, 0. c4

UNITED STATES PATENT oEEToE.

CHARLES W. DALL, 0F WAUKESI-IA, WISCONSIN.

OIL-BURNER ATTACHMENT FOR STOVES.

T 0 all whom it may concern:

Be it known that I, CHARLES W. DALL, a citizen of the United States, residing at Waukesha, in the county of Waukesha and State of WVisconsin, have invented certain new and useful Improvements in Oil-Burner Attachments for Stoves, of which the following is a specification.

This invention relates to a novel form of oil burner attachment adapted for use in connection with the fire boxes of cooking or heating stoves, or the like.

One of the objects of the invention resides in the provisions of an attachment for the purpose stated, which may be easily and quickly attached or removed from the types of stoves most commonly in use without alteration thereof, and which is simple in structure and highly efficient for the purpose intended.

With the above and other objects in view, the invention consists in the novel arrangement and cotiperation of parts hereinafter more fully described and pointed out in the claims, it being understood that minor changes in the form, proportion and location of parts may be made withoutdeparting from the spirit of or sacrificing any of the advantages of the invention.

In the drawings illustrating the preferred embodiment of my invention: Figure 1 is a top plan view of part of a stove with the lids removecL showing the attachment therewith. Fig. 2 is a fragmentary longitudinal sectional view taken on a line 2-2 of Fig. l, and Fig. 3 is a transverse sectional view taken on a line 3-3 of Fig. 1.

Referring now more particularly to the accompanying drawing, the reference character 1 indicates a storage tank for the oil, kerosene being preferably used, and which is provided with a sight gage 2, so that the quantity of oil contained therein may be observed. Leading from the tank to the front part of the stove 3 are feed pipe sect-ions 4L, 5 and 6, suitably connected, and pro vided with a valve 7 adjacent the tank, and a supplemental valve 8 in convenient position by means of which the flow may be controlled, the tank being located so that the oil will flow through the feed pipes by gravity. Extending into the fire box of the stove, and connected with the valve 8, is another feed pipe section 9, the pipe passing between the front wall 10 of the fire box and a metallic shield 11, which latter is supported upon Specification of Letters Patent.

Application filed November 9, 1912.

Patented Aug. 19,1913.

Serial No. 730,428.

the grate 12, and having a vertical wall portion 13, between which and the front of the fire box the greater portion of the air enterng the stove is required to pass, and in domg so passes the pipe section 9 and prevents the same from becoming overheated. The shield 11 is provided with a fiat inwardly extending member 1 1, having leg members 15 at its ends adapted to rest upon a metallic plate 16, which latter in turn is disposed upon an asbestos filling 17 for the fire box, the latter being about half filled, so that the upper part of the stove will receive the full benefit of the heat produced. Preferably formed integral with the shield member 11, and extending downwardly therefrom so as to rest at its lower open end upon the grate, 1s a cylindrical air shaft 18, having a plurality of apertures 19 in its upper end, and through which cylinder air passes upwardly and through the apertures beneath the shield to mix with the gaseous fuel which is directed downwardly through openings 20 in the shield, as will presently be explained.

Connected with the inner end of the pipe section 9, and forming a continuation thereof are sections 21 and 22, which are embedded in the asbestos filling and the latter connecting with the lower end of a relatively larger vertical pipe 23, which serves as a generator, the upper end of which extends above the asbestos filling and is exposed to the heat of the products of combustion as it passes from the burner toward the chimney. The pipe 23 is provided with a valve seat 2 1 at its lower end having a small opening therein, and a ball valve 25 adapted to close said opening when the pressure due to the vaporization of the oil tends to overcome the oil feed pressure. The upper end of the pipe 23 is provided with a small outlet opening, and is connected by an elbow 26 with a horizontal forwardly extending pipe 27, serving as an expansion chamber and which is connected by a T- coupling with the adjacent ends of oppositely extending pipe sections 28, which are capped at their ends and form the burner, the same having downwardly directed out let spouts 29 projecting into the openings 20 in the shield 11 located directly below the burner.

As the vaporized oil passes from the pipe 23 into the expansion pipe or chamber,

Which latter is located in the path of the flames and heat on their way to the chimney, the same becomes highly heated and the vapor is converted into a more highly gaseous state by further expansion. The gas next passing into the burner, which is protected by the shield to prevent overheating thereof, passes out of the burner in a downward direction, as heretofore explained, so that the combustion takes place beneath the shield, air being conducted through the air shaft to a point beneath the shield to mix with the gas as it comes from the burner. The jets of gas are directed downwardly against asbestos deflector pads 30, so as to spread the flames and more evenly distribute the heat, the paths traveled by which are toward the generator pipe 23 and the expansion pipe 27 on their way to the flue (not shown) with which the stove is connected.

Having thus described my invention, what is claimed is l. The combinationof a stove embodying a fire-box and a grate, a filler of non-combustible material disposed upon said grate, a shield disposed upon said filler with a portion thereof spaced from the latter and provided with openings therein, a burner arranged above said shield and having downwardly directed openings in line with the shield openings, an expansion pipe in communication with said burner and extending rearwardly thereof within the fire-box,

a vertically disposed generator extending through said filler and having communica tion at its upper end with said expansion pipe, and a source of oil supply for the generator.

2. The combination of a stove embodying a grate, a filler of non-combustible material disposed upon said grate; a source of oil supply, a generator in communication with the oil supply; an expansion chamber in communication with the generator, a burner in communication with the expansion chamber and having downwardly directed outlets, a shield arranged beneath the burner and provided with openings in line with the burner outlets to direct the flame beneath said shield, and an air shaft having a perforated upper end extending downwardly from said shield through the filler to the stove grate.

3. The combination of a stove embodying a grate, a filler of noncombustible material disposed upon the grate, a shield having openings therein spaced from said filler, an air shaft extending downwardly from the shield through the filler to the grate and provided with a perforated upper end, a burner disposed above the shield and having downwardly directed outlets in line with the openings in the latter, a generator in communication with the burner, and a source of oil supply for the generator.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES DALL. Witnesses CHARLES BAXTER, M. T. MURPHY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

